Assistant Humboldt Bay Fire Chief Bill Gillespie said fire crews responded between 10 p.m. and midnight in order to help EPD identify and clean up the bombs, which were likely made from hydrochloric acid.

Gillespie said there were no injuries or damage from the bombs. One was found in the road that runs through the park and another was found at the base of a tree. He said it was lucky that the bombs were discovered by police officers as opposed to park visitors.

"Fortunately, it was a pretty low-key situation," Gillespie said.

EPD Sgt. Steve Watson said the department responds to bottle bombs from time to time.